feat: update tabs

Author: wangxueliang

components/tabs/demo/custom-add-trigger.md

@@ -63,8 +63,12 @@ export default {
         }
       })
       const panes = this.panes.filter(pane => pane.key !== targetKey)
-      if (lastIndex >= 0 && activeKey === targetKey) {
-        activeKey = panes[lastIndex].key
+      if (panes.length && activeKey === targetKey) {
+        if (lastIndex >= 0) {
+          activeKey = panes[lastIndex].key;
+        } else {
+          activeKey = panes[0].key;
+        }
       }
       this.panes = panes
       this.activeKey = activeKey

components/tabs/demo/editable-card.md

@@ -59,8 +59,12 @@ export default {
         }
       })
       const panes = this.panes.filter(pane => pane.key !== targetKey)
-      if (lastIndex >= 0 && activeKey === targetKey) {
-        activeKey = panes[lastIndex].key
+      if (panes.length && activeKey === targetKey) {
+        if (lastIndex >= 0) {
+          activeKey = panes[lastIndex].key;
+        } else {
+          activeKey = panes[0].key;
+        }
       }
       this.panes = panes
       this.activeKey = activeKey

components/tabs/tabs.jsx

@@ -5,6 +5,7 @@ import isFlexSupported from '../_util/isFlexSupported';
 import PropTypes from '../_util/vue-types';
 import { getComponentFromProp, getOptionProps, filterEmpty } from '../_util/props-util';
 import { cloneElement } from '../_util/vnode';
+import { ConfigConsumerProps } from '../config-provider';
 import TabBar from './TabBar';
 
 export default {
@@ -15,7 +16,7 @@ export default {
     event: 'change',
   },
   props: {
-    prefixCls: PropTypes.string.def('ant-tabs'),
+    prefixCls: PropTypes.string,
     activeKey: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
     defaultActiveKey: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
     hideAdd: PropTypes.bool.def(false),
@@ -29,6 +30,9 @@ export default {
     tabBarGutter: PropTypes.number,
     renderTabBar: PropTypes.func,
   },
+  inject: {
+    configProvider: { default: () => ({}) },
+  },
   mounted() {
     const NO_FLEX = ' no-flex';
     const tabNode = this.$el;
@@ -64,14 +68,16 @@ export default {
   render() {
     const props = getOptionProps(this);
     const {
-      prefixCls,
+      prefixCls: customizePrefixCls,
       size,
       type = 'line',
       tabPosition,
       animated = true,
       hideAdd,
       renderTabBar,
     } = props;
+    const getPrefixCls = this.configProvider.getPrefixCls || ConfigConsumerProps.getPrefixCls;
+    const prefixCls = getPrefixCls('tabs', customizePrefixCls);
     const children = filterEmpty(this.$slots.default);
 
     let tabBarExtraContent = getComponentFromProp(this, 'tabBarExtraContent');
@@ -136,6 +142,7 @@ export default {
     const tabBarProps = {
       props: {
         ...this.$props,
+        prefixCls,
         tabBarExtraContent,
         renderTabBar: renderTabBarSlot,
       },
@@ -148,6 +155,7 @@ export default {
     const tabsProps = {
       props: {
         ...getOptionProps(this),
+        prefixCls,
         tabBarPosition: tabPosition,
         renderTabBar: () => <TabBar {...tabBarProps} />,
         renderTabContent: () => (